USB wireless network card

Abstract

The invention discloses a USB (Universal Serial Bus) wireless network card which has the functions of folding an antenna, dynamically opening and closing heat dissipation holes and preventing water and dust. The two sides of the network card shell are provided with heat dissipation holes and are covered with waterproof and dustproof nets. A sliding groove is formed in the top of the shell, a movable plate capable of sliding is arranged in the sliding groove, and shielding parts are arranged on the two sides of the movable plate and correspond to the heat dissipation holes in a one-to-one mode. The rear end of the shell is rotationally connected with a foldable antenna, and a pressing rod is fixed to the antenna. When the antenna is unfolded, the movable plate moves backwards, so that the heat dissipation holes are exposed, and heat dissipation is enhanced; when the antenna is folded, the movable plate moves forwards, so that the shielding part covers the heat dissipation holes, and the dustproof and waterproof performance is improved. In addition, a clamping groove is formed in the top of the connecting base, the antenna can be clamped and fixed in a folded state, and the structural stability is enhanced. By unfolding and folding the antenna, dynamic opening and closing of the heat dissipation holes are achieved, the heat dissipation efficiency is improved, dust and water vapor entering are reduced, and the antenna is reasonable in structure and suitable for various wireless communication devices.

Description

Technical Field

[0001] The present invention relates to the field of wireless communication technologies, and particularly to a USB wireless network card. Background Art

[0002] Currently, USB wireless network cards on the market usually adopt a fixed or rotatable antenna design, and heat dissipation holes are provided on the housing to improve heat dissipation performance. In addition, in order to prevent dust and moisture from entering, a waterproof and dustproof net is covered on the heat dissipation holes of some wireless network cards. However, the existing waterproof and dustproof nets can only reduce the entry of dust and water droplets to a certain extent, and still cannot completely prevent water vapor or fine dust from penetrating into the housing, which may cause electronic components to be affected by moisture or dust accumulation and affect heat dissipation performance.

[0003] In addition, the heat dissipation holes of existing wireless network cards are usually designed with fixed openings and cannot dynamically adjust the heat dissipation capacity according to the actual working state. When the device is running at high load, the heat dissipation effect of the fixed heat dissipation holes may be insufficient, and when the device is at low load or standby state, the continuous opening of the heat dissipation holes will increase the risk of dust and moisture entering. Summary of the Invention

[0004] The present invention provides a USB wireless network card with a foldable antenna, a structure for dynamically opening and closing heat dissipation holes, and waterproof and dustproof functions.

[0005] The USB wireless network card provided by the present invention includes:

[0006] A housing, on the top of which a chute is provided, and a plurality of heat dissipation holes are evenly spaced along the front-back direction of the housing on both the left and right side walls of the housing. A waterproof and dustproof net is covered on each heat dissipation hole. A connection seat is provided on the front side of the top of the housing, and a blind hole is provided on the rear end face of the connection seat.

[0007] A movable plate, which is arranged in the chute and can move along the front-back direction of the housing. A plurality of shielding parts are connected to both the left and right sides of the movable plate and are evenly spaced along the front-back direction of the housing. The shielding parts are arranged in one-to-one correspondence with the heat dissipation holes. A protrusion is provided on the upper surface of the movable plate. A connection column is fixedly provided on the front side surface of the protrusion, and the front end of the connection column can be movably inserted into the blind hole. A compression spring is provided in the blind hole. One end of the compression spring abuts against the front end of the connection column, and the other end of the compression spring abuts against the bottom surface of the blind hole. The rear side surface of the protrusion is an inclined surface.

[0008] A USB plug, which is arranged at the front end of the housing.

[0009] An antenna is rotatably arranged at the rear end of the housing. A pressure rod is fixedly arranged on the antenna. The antenna has a deployed state and a folded state, and the antenna is switched between the deployed state and the folded state by rotation. When the antenna is in the deployed state, the compression spring is in a stretched state, the rear end of the movable plate abuts against the rear wall of the chute, and each shielding portion is offset from the corresponding heat dissipation hole so that all the heat dissipation holes are exposed; when the antenna is in the folded state, the compression spring is in a compressed state, the front end of the movable plate abuts against the front wall of the chute, and each shielding portion covers the corresponding heat dissipation hole so that all the heat dissipation holes are closed; when the antenna is switched from the deployed state to the folded state, the pressure rod applies force to the inclined surface to push the movable plate forward, so that the compression spring is compressed.

[0010] Preferably, the inclined surface is inclined forward from bottom to top towards the movable plate, the pressure rod is vertically connected to the peripheral wall of the antenna, and when the antenna is in the folded state, the pressure rod is perpendicular to the upper surface of the movable plate.

[0011] Preferably, a clamping groove is arranged at the top of the connecting seat, and when the antenna is in the folded state, the antenna is clamped and fixed in the clamping groove.

[0012] Preferably, a mounting seat is fixedly arranged at the rear end of the housing, a connecting portion is vertically arranged at the lower end of the antenna, the connecting portion is rotatably connected to the mounting seat, and the antenna is always electrically connected to the signal receiving module in the housing through a circuit.

[0013] Preferably, all the heat dissipation holes are strip-shaped and obliquely extend along the up-and-down direction of the housing. The heat dissipation holes on each side wall of the housing are parallel to each other, and the area between any two adjacent heat dissipation holes is used to accommodate the shielding portion so that the shielding portion can be completely offset from the corresponding heat dissipation hole.

[0014] One or more technical solutions provided in the present invention have at least the following technical effects or advantages:

[0015] The heat dissipation holes designed in the present invention are automatically opened when the antenna is deployed and automatically closed when the antenna is folded, which can provide sufficient heat dissipation during high-load operation and prevent dust and moisture from entering during low-load or standby states, improving the reliability of the device. Compared with the traditional design that only relies on a waterproof and dustproof net, the present invention realizes physical enclosure through a mechanical shielding structure, further improving the dustproof and waterproof performance; moreover, the present invention adopts an antenna rotation linkage shielding mechanism, which does not require an additional electronic control system, simplifies the structure and improves the service life. The present invention can be applied to various USB wireless communication devices, especially suitable for wireless network cards used in outdoor or humid environments. Description of the Drawings

[0016] Figure 1 It is a cross-sectional view of the present invention when the antenna is in the folded state;

[0017] Figure 2 Side view of the present invention when the antenna is in the folded state;

[0018] Figure 3 Side view of the present invention when the antenna is in the unfolded state.

[0019] Explanation of reference numerals: 10, housing; 11, chute; 12, heat dissipation holes; 14, connecting seat; 141, blind hole; 142, card slot; 15, compression spring; 16, mounting seat; 20, movable plate; 21, shielding portion; 22, protrusion; 221, inclined surface; 23, connecting column; 30, USB plug; 40, antenna; 41, pressing rod; 42, connecting portion. Detailed implementation manners

[0020] To make the above objects, features and advantages of the present invention more obvious and understandable, the following will describe in detail the specific embodiments of the present invention with reference to the accompanying drawings.

[0021] As Figures 1 to 3 shown, the USB wireless network card of this embodiment includes a housing 10, a movable plate 20, a USB plug 30 and an antenna 40. In order to make the accompanying drawings more clearly show the content to be protected in this embodiment, the electronic components in the housing 10 are deleted in the accompanying drawings to avoid blocking the content to be protected by the present invention.

[0022] The housing 10 is made of ABS plastic or aluminum alloy to balance heat dissipation performance and structural strength.

[0023] A chute 11 is provided at the top of the housing 10. The chute 11 is recessed on the top surface of the housing 10 and extends along the front-rear direction of the housing 10. A plurality of heat dissipation holes 12 evenly spaced along the front-rear direction of the housing 10 are provided on both the left and right side walls of the housing 10. The heat dissipation holes 12 are used to connect the inner cavity of the housing 10 with the external atmosphere. A waterproof and dustproof net 13 is covered on each heat dissipation hole 12. The waterproof and dustproof net 13 is adhesively fixed to the inner wall of the housing 10. The waterproof and dustproof net 13 can be made of ePTFE material to ensure air circulation while preventing water droplets and dust from entering. A connecting seat 14 is provided at the front side of the top of the housing 10. A blind hole 141 is provided on the rear end surface of the connecting seat 14. The blind hole 141 is opened along the front-rear direction of the housing 10.

[0024] The movable plate 20 is arranged in the chute 11 and can move along the front-rear direction of the housing 10. The movable plate 20 is limited by the chute 11, so that the movable plate 20 can only slide along the front-rear direction of the housing 10 in the chute 11 and cannot move in other directions.

[0025] On both the left and right sides of the movable plate 20, a plurality of shielding portions 21 are connected, which are evenly spaced in the front-rear direction of the housing 10. Each shielding portion 21 is integrally formed with the movable plate 20, and each shielding portion 21 is perpendicular to the movable plate 20. The shielding portions 21 are all abutted against the outer side wall of the housing 10, and the shielding portions 21 are arranged in one-to-one correspondence with the heat dissipation holes 12.

[0026] On the upper surface of the movable plate 20, a protrusion 22 is provided. The protrusion 22 is located at the front end position of the movable plate 20. On the front side surface of the protrusion 22, a connecting column 23 is fixedly provided. The connecting column 23 extends in the front-rear direction of the housing 10. The front end of the connecting column 23 can be movably inserted into the blind hole 141, so that the connecting column 23 can move back and forth in the blind hole 141. A compression spring 15 is provided in the blind hole 141. One end of the compression spring 15 abuts against the front end of the connecting column 23, and the other end of the compression spring 15 abuts against the bottom surface of the blind hole 141. The rear side surface of the protrusion 22 is an inclined surface 221, and the inclined surface 221 is inclined forward from bottom to top towards the movable plate 20.

[0027] The USB plug 30 is arranged at the front end of the housing 10, and the USB plug 30 is electrically connected to the electronic components in the housing 10.

[0028] At the rear end of the housing 10, a mounting seat 16 is fixedly provided. A connecting portion 42 is vertically provided at the lower end of the antenna 40. The connecting portion 42 is rotatably connected to the mounting seat 16. The antenna 40 is always electrically connected to the signal receiving module in the housing 10 through a circuit. The antenna 40 can rotate around the mounting seat 16 and is stably mounted through the connecting portion 42. A pressing rod 41 is fixedly provided on the antenna 40. The antenna 40 has a deployed state and a folded state, and the antenna 40 is switched between the deployed state and the folded state by rotation.

[0029] When the antenna 40 is in the deployed state, the compression spring 15 is in the extended state. The rear end of the movable plate 20 abuts against the rear wall of the sliding groove 11. Each shielding portion 21 is staggered from the corresponding heat dissipation hole 12, so that all the heat dissipation holes 12 are exposed to improve the heat dissipation performance.

[0030] When the antenna 40 is in the folded state, the compression spring 15 is in the compressed state. The front end of the movable plate 20 abuts against the front wall of the sliding groove 11. Each shielding portion 21 covers the corresponding heat dissipation hole 12, so that all the heat dissipation holes 12 are closed to achieve the functions of dust-proof and waterproof sealing.

[0031] When the antenna 40 is switched from the deployed state to the folded state, the pressing rod 41 applies force to the inclined surface 221 to push the movable plate 20 forward, so that the compression spring 15 is compressed, and the closing of the heat dissipation holes 12 is completed. The compression spring 15 can provide a return force when the antenna 40 is deployed to push the movable plate 20 in the rear side direction of the housing 10 to drive all the shielding portions 21 to move synchronously, so that all the heat dissipation holes 12 are exposed.

[0032] The pressure bar 41 is vertically connected to the peripheral wall of the antenna 40. When the antenna 40 is in the folded state, the pressure bar 41 is perpendicular to the upper surface of the movable plate 20, so that the pressure bar 41 can act better on the inclined surface 221 when the antenna 40 is folded.

[0033] A clamping groove 142 is provided at the top of the connecting seat 14. When the antenna 40 is in the folded state, the antenna 40 is clamped and fixed in the clamping groove 42. Thus, when the antenna 40 is in the folded state, it is clamped and fixed through the clamping groove 142, which can prevent the antenna 40 from loosening or accidentally swinging, improve the overall stability of the device, reduce the impact of external force on the antenna 40, avoid damage caused by shaking or accidental collision, protect the connection interface between the antenna 40 and the circuit, and extend the service life. Moreover, after the antenna 40 is fixed, the overall device is more compact, convenient to carry and store, avoids occupying extra space due to the loosening of the antenna 40, improves the user experience, and the clamping groove 142 provides a clear storage position, avoiding the influence of the incomplete folding of the antenna 40 on the normal operation of the heat dissipation hole shielding mechanism and improving the reliability of the device.

[0034] The heat dissipation holes 12 are all elongated and extend obliquely along the up-and-down direction of the housing 10. The heat dissipation holes 12 on each side wall of the housing 10 are parallel to each other. The heat dissipation holes 12 are elongated and distributed obliquely along the up-and-down direction of the housing 10, which helps the natural convection of air, enables the internal heat to be discharged more effectively, and improves the heat dissipation efficiency. Moreover, the inclined design of the heat dissipation holes 12 can reduce the possibility of dust directly depositing in the heat dissipation holes 12. Compared with the horizontal or vertical hole-opening methods, it can better keep the interior clean, extend the service life of the device, and the area between any two adjacent heat dissipation holes 12 is used to accommodate the shielding part 21, so that the shielding part 21 can be completely staggered from the corresponding heat dissipation hole 12, enabling the shielding part 21 to accurately correspond to the heat dissipation hole 12 during movement, achieving complete staggering or complete shielding, and ensuring the reliability of the heat dissipation and protection functions.

[0035] This specification and the drawings are merely exemplary descriptions of the present invention and are considered to cover any and all modifications, variations, combinations, or equivalents within the scope of the present invention. Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the present invention and its equivalent technologies, the present invention is intended to include these modifications and variations.

Claims

1. A USB wireless network card, characterized in that, Including: A housing (10), on the top of the housing (10) there is a sliding groove (11), on the left and right side walls of the housing (10) there are a plurality of heat dissipation holes (12) evenly spaced in the front-back direction of the housing (10), on each heat dissipation hole (12) there is a waterproof and dustproof net (13) covered, on the front side of the top of the housing (10) there is a connecting seat (14), on the rear end face of the connecting seat (14) there is a blind hole (141); A movable plate (20), arranged in the sliding groove (11) and capable of moving in the front-back direction of the housing (10), on the left and right sides of the movable plate (20) there are a plurality of shielding parts (21) evenly spaced in the front-back direction of the housing (10), the shielding parts (21) are arranged in one-to-one correspondence with the heat dissipation holes (12), on the upper surface of the movable plate (20) there is a protrusion (22), on the front side face of the protrusion (22) there is a connecting column (23) fixedly arranged, the front end of the connecting column (23) can be movably inserted into the blind hole (141), in the blind hole (141) there is a compression spring (15), one end of the compression spring (15) abuts against the front end of the connecting column (23), the other end of the compression spring (15) abuts against the bottom surface of the blind hole (141), the rear side face of the protrusion (22) is an inclined surface (221); A USB plug (30), arranged at the front end of the housing (10); An antenna (40), rotatably arranged at the rear end of the housing (10), on the antenna (40) there is a pressing rod (41) fixedly arranged, the antenna (40) has an unfolded state and a folded state, the antenna (40) is switched between the unfolded state and the folded state by rotation, when the antenna (40) is in the unfolded state, the compression spring (15) is in a stretched state, the rear end of the movable plate (20) abuts against the rear wall of the sliding groove (11), each shielding part (21) is staggered with the corresponding heat dissipation hole (12), so that all the heat dissipation holes (12) are exposed; when the antenna (40) is in the folded state, the compression spring (15) is in a compressed state, the front end of the movable plate (20) abuts against the front wall of the sliding groove (11), each shielding part (21) covers the corresponding heat dissipation hole (12), so that all the heat dissipation holes (12) are closed; when the antenna (40) is switched from the unfolded state to the folded state, the pressing rod (41) applies a force to the inclined surface (221) to push the movable plate (20) forward, so that the compression spring (15) is compressed.

2. The USB wireless network card according to claim 1, wherein The inclined surface (221) is inclined forward from bottom to top towards the movable plate (20), the pressing rod (41) is vertically connected to the peripheral wall of the antenna (40), when the antenna (40) is in the folded state, the pressing rod (41) is perpendicular to the upper surface of the movable plate (20).

3. The USB wireless network card according to claim 1, characterized in that, On the top of the connecting seat (14) there is a clamping groove (142), when the antenna (40) is in the folded state, the antenna (40) is clamped and fixed in the clamping groove (42).

4. The USB wireless network card according to claim 1, characterized in that, A mounting seat (16) is fixedly arranged at the rear end of the housing (10). A connecting portion (42) is vertically arranged at the lower end of the antenna (40). The connecting portion (42) is rotatably connected to the mounting seat (16). The antenna (40) is always electrically connected to the signal receiving module in the housing (10) through a circuit.

5. The USB wireless network card according to claim 1, wherein The heat dissipation holes (12) are all strip-shaped and extend obliquely along the up-and-down direction of the housing (10). The heat dissipation holes (12) on each side wall of the housing (10) are all parallel to each other, and the area between any two adjacent heat dissipation holes (12) is used to accommodate a shielding portion (21) so that the shielding portion (21) can be completely staggered from the corresponding heat dissipation hole (12).

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